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2005-04-26-12 Case of the week #143 © Jeanty www.thefetus.net/
Case of the week #143

May 5- June 2, 2005

Philippe Jeanty, MD, PhD
Tennessee Women"s Care, Nashville TN

With this case we are starting a new feature that I had wanted to provide for a long time: reviewing 3D volumes.

I fully realize that many of you may not have access to this technology (yet). But this is no gimick and it does impact prenatal diagnosis, so i think it is well worth the effort to learn this new technology.


There are several demo volumes available on the web but few with interesting features since few authors are willing to put their priced case for anyone to download. Further the manufacturers of the 3D software sell the program to review the volume and it would be impractical to ask all the readers to purchase a copy !

To correct this I have asked Siemens and GE to make a modified version of their software and here is the first case that can be reviewed this way.


4DTheFetusView is the same program as 4DView but with a few differences:

  • It does not require a dongle (or key)
  • It does not expire
  • It is free

But it has the following limitations:

  • It can only open volumes posted by TheFetus.net
  • It includes a copyright notice on the images (please respect it)
  • And it cannot be used to save images or clips

In essence, it allows to manipulate the volumes and study them but not to “take stuff out of them”.

I would like to express my deep appreciation to Petra Hobelsberger and Christian Grabner from GE for making this possible.

If you already own a copy of 4Dview, you DO NOT NEED to download the 4DTheFetusView. 4Dview will open the volumes.

If you do not have 4Dview you can download the 44 MB (watch out if you have a slow line) 4DTheFetusView from here. This file is not copy-protected so if you have trouble downloading it, you can ask a friend with a faster connection and transfer it to your PC. Here are some instructions on how to use the program. The user manual (15 MB) is posted here. Note that when the program loads it will tell you this is fro Demo use only and not diagnostic use... just click OK :)

The volume is downloadable from here.

 

To make the analysis simple let me tell you that the anomaly in this case is part of the skull, so you will have to use Skeletal rendering mode to make it most visible. Also since this case involves a lot of downloading and mastering new programs, this case will be posted for one month so you should not have to be frustrated by a too short time to answer it ! Learning a new program is always difficult and Deepinder (one of the unsung heroes that makes the web site function) has provided a refresher How to use the forum,  so you can exchange questions and tips on how to do this. Of course, this would not be a place to exchange diagnoses !!!!
 

I am also happy to announce that Michael Kammermeier, the utmost wizard in 3D manipulations will explain how to resolve the 3D manipulations at the end of this case. I am very thankful to Mike to have agreed to that !

When you have tried to solve the case on your own (no team work here please !) you can find the Answer here.

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